An issue was discovered in network-manager-applet (aka network-manager-gnome) in Ubuntu 12.04 LTS, 14.04 LTS, 16.04 LTS, and 16.10. A local attacker could use this issue at the default Ubuntu login screen to access local files and execute arbitrary commands as the lightdm user. The exploitation requires physical access to the locked computer and the Wi-Fi must be turned on. An access point that lets you use a certificate to login is required as well, but it's easy to create one. Then, it's possible to open a nautilus window and browse directories. One also can open some applications such as Firefox, which is useful for downloading malicious b
nm-connection-editor in NetworkManager (NM) 0.7.x exports connection objects over D-Bus upon actions in the connection editor GUI, which allows local users to obtain sensitive information by reading D-Bus signals, as demonstrated by using dbus-monitor to discover the password for the WiFi network.
NetworkManager (NM) 0.7.2 does not ensure that the configured Certification Authority (CA) certificate file for a (1) WPA Enterprise or (2) 802.1x network remains present upon a connection attempt, which might allow remote attackers to obtain sensitive information or cause a denial of service (connectivity disruption) by spoofing the identity of a wireless network.
GNOME NetworkManager before 0.7.0.99 does not properly verify privileges for dbus (1) modify and (2) delete requests, which allows local users to change or remove the network connections of arbitrary users via unspecified vectors related to org.freedesktop.NetworkManagerUserSettings and at_console.
nm-applet.conf in GNOME NetworkManager before 0.7.0.99 contains an incorrect deny setting, which allows local users to discover (1) network connection passwords and (2) pre-shared keys via calls to the GetSecrets method in the dbus request handler.